Short answer: You fix a damaged sending reputation by stopping the harm, finding the cause, and rebuilding trust slowly. Pause aggressive sending, clean your lists, confirm your authentication, and then warm the domain back up with low volume and high engagement. Reputation recovers with time and good behavior, not with a quick trick.
Signs your reputation is damaged
- Emails that used to land now go to spam.
- Open and reply rates drop sharply.
- Bounces or complaints have risen.
Step by step recovery
- Pause or sharply reduce sending.
- Clean your list and remove invalid or unengaged addresses.
- Confirm SPF, DKIM, and DMARC are correct.
- Warm the domain again with small, friendly, high reply volume.
- Rebuild outreach slowly, watching your numbers.
What caused it
Common causes are dirty lists with many bounces, sending too much too fast, too many spam complaints, or poor targeting. Find and fix the cause, or the problem returns after recovery.
How long it takes
There is no fixed timeline. With consistent good behavior, reputation improves over days and weeks. The key is patience and discipline, not volume.
Frequently asked questions
Q: Can I just switch to a new domain?
A: You can, but if the habits that caused the damage continue, the new domain will suffer too. Fix the cause either way.
Q: Does warmup help recovery?
A: Yes. Rebuilding engagement at low volume is a core part of recovering reputation.
Q: How do I know it is working?
A: Placement tests improve and your reply rates recover as you rebuild.
Q: Should I keep emailing while recovering?
A: Only at low, careful volume with clean lists and relevant messages.
Q: Can one bad campaign cause this?
A: Yes, a single blast to a dirty list can damage reputation quickly.
Next step
Check your status with how to check if your domain is blacklisted and rebuild with inbox warmup. More at the courses.